* [iproute PATCH] man: ip-route.8: Add notes about dropped IPv4 route cache
@ 2016-11-30 8:29 Phil Sutter
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From: Phil Sutter @ 2016-11-30 8:29 UTC (permalink / raw)
To: Stephen Hemminger; +Cc: netdev
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
man/man8/ip-route.8.in | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/man/man8/ip-route.8.in b/man/man8/ip-route.8.in
index d4fae3cc783ba..c0acaa0020ef7 100644
--- a/man/man8/ip-route.8.in
+++ b/man/man8/ip-route.8.in
@@ -924,6 +924,12 @@ routes are left unchanged. Any routes specified in the data stream that
already exist in the table will be ignored.
.RE
+.SH NOTES
+Starting with Linux kernel version 3.6, there is no routing cache for IPv4
+anymore. Hence
+.B "ip route show cached"
+will never print any entries on systems with this or newer kernel versions.
+
.SH EXAMPLES
.PP
ip ro
--
2.10.0
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2016-11-30 8:29 [iproute PATCH] man: ip-route.8: Add notes about dropped IPv4 route cache Phil Sutter
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